Manje sekuvamile kakhulu ukusebenzisa i-elekthronikhiizikali zeloliNgokuphathelene nokulungiswa nokugcinwa okuvamile kwezikali/ibhuloho lokukala iloli kagesi, ake sixoxe ngolwazi olulandelayo njengomhlinzeki webhuloho lokukala:
Isikali seloli kagesi sakhiwe kakhulu yizingxenye ezintathu: i-loadcell, isakhiwo kanye nesekethe. Ukunemba kusuka ku-1/1500 kuya ku-1/10000 noma ngaphansi. Ukusetshenziswa kwesekethe yokuguqula i-A/D ehlanganisiwe ephindwe kabili kungahlangabezana nezidingo zokunemba futhi kunezinzuzo zekhono eliqinile lokulwa nokuphazamiseka kanye nezindleko eziphansi. Ekusetshenzisweni kwemithethonqubo kazwelonke ye-metrology, amaphutha esikali seloli kagesi uqobo kanye namaphutha engeziwe asetshenziswayo yizinkinga abakhiqizi nabasebenzisi okumele bazinake.
Okokuqala, indlela yokunciphisa amaphutha ekwakhiweni nasekukhiqizweni kwe-electronic weighbridge:
1. Isiqinisekiso sezinkomba zobuchwepheshe ze-loadcell
Kuyisihluthulelo sokuqinisekisa ikhwalithi yesikali samaloli kagesi ukukhetha ama-loadcell anezinkomba zobuchwepheshe ezahlukahlukene ezihlangabezana nezidingo zokunemba. Ukulingana, ukukhukhuleka, i-coefficient yokushisa engenamthwalo kanye ne-coefficient yokushisa yokuzwela yizinkomba ezibalulekile zama-loadcell. Kuqoqo ngalinye lama-loadcell, ukuhlolwa kwamasampula kanye nokuhlolwa kokushisa okuphezulu nokuphansi kumele kwenziwe ngokuhambisana nesilinganiso sokusampula esidingwa yizindinganiso zikazwelonke ezifanele.
2. Isilinganiso sokushisa sesekethe yesikali seloli kagesi
Ukuhlaziywa kwethiyori kanye nokuhlolwa kufakazela ukuthi i-coefficient yokushisa yokumelana kokufakwayo kwe-amplifier yokufaka kanye nokumelana kwempendulo kuyizinto ezibalulekile ezithinta i-coefficient yokushisa yokuzwela kwesilinganiso seloli kagesi, futhi kumele kukhethwe i-resistor yefilimu yensimbi ene-coefficient yokushisa engu-5×10-6. Ukuhlolwa kokushisa okuphezulu kumele kwenziwe kuzo zonke izikali zeloli kagesi ezikhiqizwayo. Kweminye imikhiqizo enenani elincane le-coefficient yokushisa engabekezeleleki, ama-resistor efilimu yensimbi ane-coefficient yokushisa engaphansi kuka-25×10-6 angasetshenziswa ukukhokhela. Ngesikhathi esifanayo nokuhlolwa kokushisa okuphezulu, umkhiqizo wabhekana nokuguga kokushisa ukuze kuthuthukiswe ukuzinza komkhiqizo.
3. Isinxephezelo esingesiqondile sesikali samaloli kagesi
Ngaphansi kwezimo ezifanele, inani ledijithali lesikali selori kagesi ngemva kokuguqulwa kwe-analog kuya kwedijithali kanye nesisindo esibekwe esikalini selori kagesi kufanele kube okuqondile. Uma wenza ukulinganisa ngokunemba ngesikhathi senqubo yokukhiqiza, sebenzisa uhlelo lwekhompyutha lwangaphakathi ukuze ulinganisele iphuzu elilodwa. Bala ukuthambeka phakathi kwenombolo nesisindo ngokuya ngomugqa oqondile ofanele bese uwugcina ememori. Lokhu akukwazi ukunqoba iphutha elingelona eliqondile elikhiqizwe yinzwa kanye ne-integrator. Ukusebenzisa ukulungiswa kwamaphuzu amaningi, ukusebenzisa imigqa eminingi eqondile ukuze ulinganisele ijika kunciphisa ngempumelelo iphutha elingelona eliqondile ngaphandle kokukhulisa izindleko zehadiwe. Isibonelo, isikali selori kagesi esinokunemba okungu-1/3000 sisebenzisa ukulinganisa kwamaphuzu ama-3, kanti isikali selori kagesi esinokunemba okungu-1/5000 sisebenzisa ukulinganisa kwamaphuzu ama-5.
Isikhathi sokuthunyelwe: Okthoba-28-2021